<button class="mb-3 mr-3" id="button-loading-default" tiButton [loading]="true">加载中</button>
<button class="mb-3 mr-3" id="button-loading-danger" tiButton [loading]="true" color="danger">加载中</button>
<button class="mb-3 mr-3" id="button-loading-primary" tiButton [loading]="true" color="primary">加载中</button>
